Oil burning furnace construction



J. REID. O IL BURNING FURNACE CONSTRUCTION.

. v 4 APPLICATION FILED AU( ;.I4,1919. 4

- 1,321,555. 5 Patented Nov. 11, 1919.

- 2 SHEETS-SHEEKT 1.

J. REID. 'OII. BURNING FURNACE CONSTRUCTION.

APPLICATION FILED AUG-I41 I9I9- 1,321,555. Patented Nov. 11, 1919.

2 SHEETS-SHEET '2..

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JOHN REID, or NEW YORK, N. Y.

OIL-BURNING-FURNACE CONSTRUCTION.

Specification of Letters Patent.

Patented Nov. 11, 1919.

Application filed August 14, 1919. Serial No. 317,538.

To all whom it may concern:

Be it known that I, JOHN REID, a subject of the King of Great Britain, and residing at 30 Church street, in the city of New York, in the State of New York, in the United States of America, have invented a new and useful Oil-Burning-Furnace Construction, of which the following is the specification.

The invention relates to oil burning furnace construction as described in the present specification and illustrated in the accompanying drawings that form part of the same.

The invention consists essentially in the novel means of distributing the draft air from the heaters to and through the furnace fronts for mixing purposes in furthering the combustion of the oil.

The objects of the invention are to facilitate the consumption of the oil and thereby economize in the quantity of oil used; to avoid uneven temperatures from poor mixtures and thereby maintain the steam pressures in one or a plurality of boilers; to facilitate shipping and assembling; to efiect quick replacements .and repairs and thus eliminate delays and accidents particularly in marine installations; to furnish parts built on standard patterns; and generally to provide an efficient, durable and serviceable construction for the purposes aforesaid.

In the drawings, Figure 1 is an elevation of the back plate, showing the intermediate parts and walls in section and valves full.

Fig. 2 is a vertical sectional view of the furnace front.

Fig. 3 is a diagrammatic view, showing the course of the air from the preferred form of air heaters.

Fig. 4 is a detail of the inner and central air wall.

Fig. 5 is a horizontal sectional view on the line of the air valves and cover plate.

Like numerals of reference indicate corresponding parts in each figure.

Referring to the drawings, the frame of the front is formed with the front plate 1 having the upper opening 2 at or near the center and the lower opening 3, both openings being for accessibility to the interior of the front and the lower opening being also for natural draft purposes when required. The back plate 4 of the frame has a central circular opening 5 for the burner in which a Venturi tube 6 or other air conthe draft air is shown centrating device is situated. One intermediate part of the frame is the air pocket wall 7 at its lower end preferably following the shape of the back plate 4, and as it rises convergesslightly to the vertical end portions '8 above the central opening 5. An-

. other intermediate part is the division wall 9 forming a deflecting plate in the lower central portion'of the air pocket and another intermediate part is the deflecting hood 10 centrally arranged of the plates. All of the intermediate parts described are rigid with the front and back plates and preferably are cast in one piece therewith, though it is not necessary that they should be.

The inner central air wall 11 is preferably a separate part from the frame and may be inserted from the back in the central opening 5. The wall 11 which is circular at its inner end and at the bottomslopesup to the straight lower edge 12, forms a tube or casing surrounding the burner 13 and in the top has the air ports 14 and in the bottom the air port 15, therefore the air reaches the vapor from the burner at all sides through the Venturi tube or other suitable aperture.

The cover plate 16 is beneath the deflecting hood 10 and is recessed at 17 to make room for the valve operating mechanism. The flanges 18 and 19 at the edges of the cover 16 abut the back and front plates respectively and are suitably secured thereto and the end flanges 20 and 21 form bearings for the valve shaft 22 carrying the valves 23 and 24 and closing the spaces between the cover plate 16 and the vertical end portions 8 of the air pocket'wall, thereby completing the closure of the air pocket.

The valves are shown as operated by the crank handle 25, the spindle 26 of which carries the crank 27 pivotally joined to the connecting rod 28,'the latter being pivotally connected to the crank 29 fixedly mounted on thehaft 22.

The preferable arrangement of heaters for in Fig. 8 and by this construction greater efliciency is obtained mainly because in a battery of furnaces usual to marine installations, each furnace receives its proper proportion of air, though the front as described is certainly operable in a battery of furnace fronts with the single type of air heater or with any kind of air heater suitable to the forced draft style in furnace construction.

In Fig. 3, the numerals 30, 31 and 32 indicate air heaters. discharging air at 33 on the one side from the heater chamber 30 and 34; on the opposite side from the heater cham ber 32, while the centralheater chamber discharges air from both ends at'35 and 36.

The air passage 37 leads I from the discharge 33 to the furnace front 38 and the iv passage 39 leads from-thedischarge 34 to the furnace frontaQ, while the passages 4:1 7 and 42 lead from 'the discharg'es 35'an'd 36'to the furnace front 43; The course of the air,

which flows by forced draft through the V heater chambers, after it leaves the passage of the pocket and meets the division wall or deflecting plate and by it is turned upwardly into the'lower of 'oil burning furnacesr "by the valves.

to a narrower v will nowbe briefly described in concluding 'this'description;

The yalves, being opened in the manner described or by any other simple v alve gear, the air rushes into the air pocket between the front and back plates and before actually :entering' is deflected: the deflecting hood and thus directed to. the ports closed i quantity of theair entering'the: pocketj' flows through the upper openings-in the inner central'air wall and the remainder flowsinto the lower portion port'of the central inner air vwall and as the latter isr shaped to converge front, end, the whole tendenc of the air flow istoward theback plateand consequently to, and through the "Venturi tubefo-r other opening from. where it is distributed evenly and becomes laden with oil vapor and" burnt in'the welll'kn'own manner Various changes may be made inlthe details ofthe constructionwithout departing I IN from the spirit of the invention, and so long I claim'sgfor novelty following, the

accorded hall not as these changesarewithin the scope of the protection be invalidated. f

What I claim is LjInoil-burning furnace construction, a

furnace front comprising a frame having front and back plates and an air pocket V therebetw'een having ports and deflecting plates, a burner, an lnner airwallisurround- 7 ing sald i burner and having p s. the ethroughl rsuitab'ly distributed, valves closing said air pocket ports, and means for direct- 2 I oil burning v fro h i g front -plaIBs l i eop ies otpthis p atent n ay he obtained for five cents each, by addre V Washington, D, G,

ing air under pressure to saidpccket.

na c n ruction, a

'and.a;pocket formed by a Wall extending downwardly from, the upper portion and Q around and'across he lower end of said central furnace from dayof Aug, 1919.

plates and having ports at the upper end, valves closing said ports, a central deflecting plate in the lower portion of said pocket, a burner, an inner air wall having upper and lower ports and forming a casing around the burner, and means for feeding air to said pocket.

3; In oil burning furnace construction, a furnace front having front and back plates spaced by rigid'w-alls, the main wall extending from the upper portion around the lower portion of the front, a deflecting wall extending upwardly from the center of said wall in the lower portion and a deflecting hood at the upper end centrally between the extremities of said main wall, valves pivotally mounted'at either side adjacent to the upper ends of said main wall, a cover plate therebetween, a valve gear, a burner and an inner central air wall forming a casing around said burner and having ports therethrough suitably distributed.

. 4. In oil burning furnace construction, a

furnace front having a removable central substantially tubular wall with air ports j and converging toward its front end and back and front plates supporting said wall, a fixed air pocket wall partially surrounding aidtubularzwall, a division wall from said y pocket centrally at the lower part thereof and terminating at the lower port of said tubular wall, a cover plate and valves closing in the upper end of said pocket, a burner, and means for operating said valves.-

5. In oil burning furnace construction, a

furnace front forming between its front and back plates an air pocket surrounding an inner a1r wall having ports suitably distributed, a burner, and an individual a1r heater chamber having a discharge passage from each end leading to each side of the furnace front.

6. In oil burning furnace construction, a central furnace front forming between its front and back plates an air pocket surrounding an inner wall having air ports, wing furnace fronts arranged on either side of said central front and having air pockets between the front and back plates surrounding inner air walls having air ports, a central air heater chamber feeding air to said each end and wing heater chambers, each having a passage to the wing furnace fronts respectively.

Signed at the city of New York this 2nd JOHN REID.

ssing the Commissioner of Patents. 

